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Derivatives and Hedging Activity - Summary of Notional and Fair Values of Derivative Instruments (Detail) - USD ($) | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Derivatives, Fair Value [Line Items] |  |  |
Notional Amount |  | $ 791,200,000 | $ 901,400,000
Derivatives Assets |  | 5,800,000 | 9,600,000
Derivative Liabilities |  | 36,500,000 | 25,800,000
Other noncurrent Assets [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivatives Assets |  | 4,200,000 | 5,700,000
Other noncurrent Liabilities [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Liabilities |  | 4,000,000 | 7,900,000
Interest Rate Contracts [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Notional Amount |  | 750,000,000 | 850,000,000
Interest Rate Contracts [Member] | Other current Assets [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivatives Assets |  | 600,000 | 3,000,000
Interest Rate Contracts [Member] | Accrued compensation and other current liabilities [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Liabilities |  | 29,800,000 | 13,000,000
Foreign Exchange Contracts [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Notional Amount | [1] | 41,200,000 | 51,400,000
Foreign Exchange Contracts [Member] | Other current Assets [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivatives Assets | [1] | 1,000,000 | 900,000
Foreign Exchange Contracts [Member] | Accrued compensation and other current liabilities [Member] |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Derivative Liabilities | [1] | $ 2,700,000 | $ 4,900,000
[1] | Included within foreign exchange contracts at March 31, 2019 were $248.8 million of call options offset with $248.8 million of put options, and $26.9 million of buy forwards offset with $68.1 million of sell forwards. Included within foreign exchange contracts at December 31, 2018 were $276.4 million of call options offset with $276.4 million of put options, and $23.1 million of buy forwards offset with $72.9 million of sell forwards.

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Nominal or face amount used to calculate payments on the derivative asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
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